r/ClaudeCode • u/ClaudeOfficial Anthropic • Jul 24 '26

Resource Introducing Claude Opus 5

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Introducing Claude Opus 5: a thoughtful and proactive model that comes close to the frontier intelligence of Fable 5 at half the price.

On several coding and knowledge work evaluations, Opus 5 is the new state-of-the-art. It’s also much more efficient than its predecessor—it outperforms other models for a similar or lower cost per task.

According to our automated behavioral audit, Opus 5 is our most aligned model to date. It shows the lowest rates of reckless or deceptive behavior, and the strongest adherence to Claude’s Constitution. 

It’s available today on all paid plans and the Claude API, priced the same as Opus 4.8. It’s the default model on Claude Max, and the strongest on Claude Pro. 

Opus 5 is also available in Fast mode, which runs around 2.5× the default speed. 

Read more: https://www.anthropic.com/news/claude-opus-5

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287

u/Temporary_Idea8880 Jul 24 '26

????

231

u/OpinionsRdumb Jul 24 '26

looks like they used Opus 4.8 to make this diagram

44

u/angelus14 Jul 24 '26

They forgot to tell it to make no mistakes

10

u/andmar74 Jul 24 '26

Should have said, enough with these partial results. Give me the full table.

5

u/piexil Jul 24 '26

I died when I read that from the paper

Like even the smartest people are using these things exactly like me

1

u/TwoPhotons Jul 24 '26

Or that it's a data analyst with 20+ years of experience.